Finding the Fourth Proportional to 1,099.52, 1,517.46 and 633.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.52 : 1,517.46 = 633.76 : x
2. Step 2: Convert to fraction form
   1,099.52/1,517.46 = 633.76/x
3. Step 3: Cross multiply
   1,099.52x = 1,517.46 × 633.76
4. Step 4: Simplify right side
   1,099.52x = 961,705.45
5. Step 5: Solve for x
   x = 961,705.45/1,099.52
6. Step 6: Final answer
   x = 874.66